What Is Spray Foam Insulation?


Quick Answer

Spray foam insulation is a type of home insulation that is sprayed between rafters and wall joists, as opposed to rolls of fiberglass placed between them. Spray foam is available in two types: open and closed cell.

Continue Reading
Related Videos

Full Answer

When installed properly, spray foam insulation may outperform a majority of standard fiberglass insulation. It provides both insulation and air barrier in the home. Closed cell spray foam insulation has a higher R-value and is typically sprayed in 2- or 3-inch thicknesses in order to meet energy code requirements. Open cell foam expands to fill the framing cavity, as opposed to closed cell, which doesn't expand.

Learn more about Home Maintenance

Related Questions